Nobody new here so this should go smoothly, here's the link to Vigenere again. As always, pad your stuff a bit, watch those Capital letters, pick a key you can remember and is an actual logical word or phrase rather than random crap, and write it down somewhere. Reply with it to this message. Just name, if you want to do role too include a second clearly distinct cipher and use a different key for it.

Example
Name: nvernvlknvelvnn
Also: vjqerkvjaflkvnlenvlkenrvlnbnerqbn

Where 'Also' might be "I'm the cop" or "I got told X was a zerg" or "This is random nonsense to distract people" or literally that, "vnerbvaenvknevenrgvlnvn"

Coded
Isaac -
Name: ErNrovIxVwsqWmcpnMmcAgdzertjHqrFaryfGrqRgmRrpuorLenueHunyiIekFyFnuUxxnIV
Also: JBtosTSeizcijsLnwIUhwskSmyeiRoxMasLttmcnkrQdLbssNXP

? -
Name: ZxlcqZ'mSxnxrXqfdgrw
Also: Bhrxvntmzbnxgcsjmglap

Bergioyn -
Name: Xoolr
Also: Dmwi Wydtpbzrjsx/lzk, sn v jgzx wp a imype iligmlg.

Yunalesca - bnamydahymnyuvdramahyccydnepauvdrahanywescdyn

Beetnemesis - nidxiefjlzgxhhnaeenewxgeg

Ranagrande -
Name: qaymvszndrasbqaacaxru
Also: foprahrcempvluggsirwtmfsrtc

Artsapat - MpgsmtILAitxnWPenUBeaBakdVK

Waiting for code
Stephen